Device for inserting or removing inner tubes of pneumatic tires



(No Model.)

I P. & H. WEBER.

DEVICE FOR INSERTING OR REMOVING INNER TUBES 0E PNEUMATIC TIRES.

No. 598,310. Patented Feb. 1, 189.8. Z551 Z727 5. 19.

Inventor W mz- Attorney r Tm: NORRIS PETERS co, Pmoumn, wnsmnswn n n NlTED STATES PATENT OFFIcE.

PETER WEBER AND HENRY WEBER, OF MILWVAUKEE, WISOON SIN.

DEVICE FOR INSERTING OR REMOVING INNER T UBES 0F PNEUMATIC TIRES.

SPECIFICATION forming part of Letters Patent No. 598,310, dated February 1, 1898. Application filed July 12, 1897. Serial No. 644,193. (No model.)

T0 at whom it may concern:

Be it known that we, PETER WEBER and HENRY WEBER, citizens of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin,have invented new and useful Improvements in Devices for Inserting or Removing the Inner Tubes of Pneumatic Tires, of which the following is a specification.

Our invention pertains to improvements in devices for inserting or removing the inner tubes of double-tubed pneumatic tires.

The object of our invention is to provide means for expediting the insertion and removal of the inner tube without straining the latter.

In the following description reference is had to the accompanying drawings, in Which- Figure 1 is a side view showing our device and illustrating the manner of inserting the inner tire-tube. Fig. 2 is an edge view of our device, showing the overlapping ends. Fig. 3 is a side view of our device when composed of separable sections and having the inner tire-tube in place preparatory to its insertion in the outer tire-tube. Fig. 4 is a view showing our device as it is being inserted in the outer tire-tube. Fig. 5 is a view illustrating the withdrawal of our device, leaving the inner tire-tube in place. Fig. 6 is a detail view showing the construction of the joint Where our device is made in sectional form.

Like parts are identified by the same reference-letters throughout the several views.

Our device is formed of a rigid open-ended conveying-tube a, preferably formed of metal and adapted to fit loosely into the outer sheath of the tire, it being bent into circular form, conforming in its curve substantially to that of the tire when inflated, with the ends preferably overlapped, as best shown in Figs. 1, 2', and 3.

The tube a may be formed integrally, as shown in Figs. 1 and 2, or it may be formed in detachable sections a a a, as shown in Fig. 3, and united when in use by union-coup.- lings b, as shown in detail in Fig. 6. The

tube is preferably formed in detachable sections when designed for use by the rider and formed integrally for use in factories.

The method of inserting and removing the tire-tube by means of our conveying-tube is described as follows: A cord a is provided with a weight 01 at one end and is, attached at the other end to one end of the inner bicycle-tube e in a well-known manner. The weight is then dropped through the conveyin g-tube a, drawing the cord after it, as shown in Fig. 1, and the tire-tube is then drawn into the conveying-tube by the cord to the position shown in Fig. 3. One end of the conveyin g tube is then inserted .in the outer sheath f of the tire, as shown in Fig. 4c, and the latter drawn over it until the conveyingtube is incased therein, with the exception of the ends, it being thus interposed between the outer sheath and the inner tube of the tire. Then by holding the exposed end of the inner tube and the outer sheath and withdrawing the conveying-tube the tire-tubes are left in position for use. The tube a is shown partially withdrawn in Fig. 4-, as indicated by dotted lines. For removing the inner tube the cord and weight are secured to one end and dropped through the conveying-tube, as above explained. The inner tire-tube is then held by the cord and the conveying-tube run in between the tire-tubes. Then the conveying-tube is withdrawn from the outer sheath, with the contained inner tube, and the latter subsequently withdrawn from the conveyingtube. By thus inserting the inner tire-tube in the metallic sheath preparatory to its insertion in or removal from the outer tire-tube the tire-tubes can be very easily and quickly united or separated, for the friction of "the rubber upon the metal is much less than that of the rubber tubes upon each other.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. A device for removing the inner tubes of double-tubed pneumatic tires, comprising an open-ended conveying-tube of rigid material bent into circular form, and adapted to same as that of the'tire, and the ends being 10 overlapped, substantially as described.

In testimony whereof We affix our signatures in the presence of two witnesses.

- PETER WEBER.

HENRY WEBER.

Witnesses:

J AS. 13. ERWIN, LEVERETT 0. WHEELER. 

